Bronze SAE 40
Subcategory: Bronze; Copper Alloy; Metal; Nonferrous Metal 
Key Words: Bronze 40; CDA 83600 
| Component |    Wt. % |   |   |  | Cu | 85 |   |  | Pb | 5 |   |  | Sn | 5 |   |  | Zn | 5 |   |  
  |   
| Physical Properties | Metric | English | Comments |  
 |  
| Density | 8.82 g/cc | 0.319 lb/in³ |  at 20°C (68°F) |  
 Mechanical Properties |  
 |  
| Hardness, Brinell | 60 | 60 |   |  
| Hardness, Knoop | 80 | 80 |  Estimated from Brinell |  
| Hardness, Vickers | 68 | 68 |  Estimated from Brinell |  
| Tensile Strength, Ultimate | 255 MPa | 37000 psi |   |  
| Tensile Strength, Yield | 125 MPa | 18100 psi |  0.2% Offset |  
| Elongation at Break | 30 % | 30 % |  in 5 cm |  
| Modulus of Elasticity | 93 GPa | 13500 ksi |   |  
 Electrical Properties |  
 |  
| Electrical Resistivity | 1.2e-005 ohm-cm | 1.2e-005 ohm-cm |   |  
 Thermal Properties |  
 |  
| Thermal Conductivity | 71.9 W/m-K | 499 BTU-in/hr-ft²-°F |   |  
| Melting Point | 854 - 1010 °C | 1570 - 1850 °F |   |  
| Solidus | 854 °C | 1570 °F |   |  
| Liquidus | 1010 °C | 1850 °F |   |  
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